Answer:
Step-by-step explanation:
It is possible that the proportion of adults in Country A equal to the proportion of adults in Country B. This statement does not necessarily mean that the populations of adults in the two countries are equal. It is the proportion and not the exact population. This occurs when the ratio of the population of adults to the total population of Country A is the same as that of the ratio of the population of adults to the total population of Country B.
Answer:
number 3
Step-by-step explanation:
Answer: Raju travels at a higher speed.
Step-by-step explanation:

Speed inversely proportional to time.
As time taken to cover a particular distance decreases the speed will increase.
Raju covers a certain distance in 1 hour.
Sham covers the same distance in 2 hours.
1< 2
Thus Raju travels at a higher speed.